cone spring for sale, brand-new and used.

Smith-Cooper International CV30 Series Brass Check Valve, 1" NPT Female The Smith-Cooper International CV30 series check valve is made of brass for corrosion resistance, ductility at high temperatures, and low magnetic permeability. Brass can be connected to copper, brass, plastic, aluminum, and welded steel. It has ethylene propylene diene monomer (EPDM) seat and seal, stainless steel spring, spring-loaded poppet, and female National Pipe Taper (NPT) connections on both ends.